泰科纳POM S9364---acetal copolymer grade S 9364 is highly impact modified grade for demanding applicati***. Hostaform® S 9364 provides a significant improvement in impact strength and flexibility over standard impact modified grades such as Hostaform® S 9063 and S 9064.
Physical performance rating unit system test method
Density: 1.37 g / cm? ISO 1183
MVR (190 ° C / 2.16 kg) 4.00 cm3 / 10min ISO 1133
Shrinkage: ISO 294-4
Vertical flow direction 1.5% ISO 294-4
Flow direction 1.6% ISO 294-4
Water absorption (saturated, 23 ° C) 0.80% ISO 62
Mechanical properties rating unit system test method
Tensile modulus 1650 MPa ISO 527-2 / 1A / 1
Tensile stress (yield) 43.0 MPa ISO 527-2 / 1A / 50
Tensile strain (yield) 16% ISO 527-2 / 1A / 50
Bending modulus (23 ° C) 1550 MPa ISO 178
Impact performance rating unit system test method
Notched impact strength of simply supported beams ISO 179 / 1ea
-30°C 11 kJ/m² ISO 179/1eA
23°C 21 kJ/m² ISO 179/1eA
Impact strength of ISO / 179 simply supported beam
-30 ° C no fracture ISO 179 / 1eu
23 ° C no fracture ISO 179 / 1eu
Thermal performance rating unit test method
Hot deformation temperature
0.45 MPa, UN annealed at 140 ° C ISO 75-2 / b
1.8 MPa, UN annealed at 75.0 ° C ISO 75-2 / A
Melting temperature 1 166 ° C ISO 11357-3
Linear coefficient of thermal expansion ISO 11359-2
Flow 1.2e-4 cm / cm / ° C ISO 11359-2
Transverse 1.1e-4 cm / cm / ° C ISO 11359-2
Injection rating unit system
Drying temperature: 80.0 to 100 ° C
Drying time: 3.0 HR
The temperature at the back of the barrel is 170 to 180 ° C
The temperature in the middle of the barrel is 180 to 190 ° C
Temperature at front of barrel 180 to 190 ° C
Nozzle temperature 180 to 200 ° C
Processing (melt) temperature 180 to 200 ° C
Mold temperature: 60.0 to 70.0 ° C
Injection pressure: 60.0 to 120 MPa
Slow injection speed
Holding pressure 60.0 to 120 MPa
Back pressure: 0.00 to 0.500 MPa
无论对于均聚POM，还是共聚POM，当成型薄壁或者采用多型腔成型制品时，均应采用较快的注塑速度。这是因为，注塑成型此类制件时，要求体系有很好的流动性能。前面讲过，POM熔体属切敏性聚合物，要增加流动性能，可通过增加注塑速度来实现；同时，在上述应用场合，POM结晶冷却速度会很快，制品很容易产生表面缺陷如折皱、斑纹及熔接痕等，为此也需要提高注塑速度。